Antistatic graphene coating and preparation method thereof
A graphene and anti-static technology, applied in coatings, conductive coatings, polyurea/polyurethane coatings, etc., can solve the problems of large reduction toxicity, strong toxicity and carcinogenicity, and poor anti-static performance, so as to avoid adverse effects, The effect of short reaction time and easy peeling
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[0021] A graphene oxide and a preparation method thereof disclosed in the prior art with publication number of CN 110697698 A, adopt graphite, acid solution and hydrogen peroxide to react at 75-85 DEG C for 25-45 minutes to obtain acid intercalated graphite; After mixing the acid-intercalated graphite, a strong oxidant is added to react, and then the acid is removed to obtain graphene oxide. The graphene oxide prepared by the preparation method only adopts one oxidation, and the radial size of the obtained graphene oxide is greater than 400 μm, and the large particle size of the graphene oxide has poor dispersibility in the solvent, thus limiting the application scope of the graphene oxide; the present invention An antistatic graphene coating, comprising the following components by weight: 0.5-2 parts of sodium thiosulfate, 1-3 parts of phosphorus pentoxide, 1-3 parts of strong oxidants, 0.1-1.0 parts of perchlorate , 0.5-2.5 parts of hydrogen peroxide, 0.005-0.015 parts of di...
Embodiment 1
[0025] Embodiment 1, the preparation method of antistatic graphene coating, comprises the following steps: The first step: get 10g sodium thiosulfate, 3g phosphorus pentoxide and 50ml concentrated nitric acid are added to 250ml round-bottomed flask, stir to complete solid dissolving , cooled to 60°C, added 2 g of flake graphite, controlled the temperature at 60°C, stirred for 3 hours, added 100 mL of deionized water, and then transferred the mixture to a 500 mL beaker, left standing, filtered with a microporous membrane, and used Washed with ionized water several times and air-dried at room temperature. The second step: add 50ml of concentrated nitric acid into a 500ml three-neck round bottom flask, and cool to 15°C. The first step product was added to the cooled concentrated nitric acid and stirred. Slowly add 10 g of sodium perchlorate, and keep the temperature below 15 °C, and after stirring for 2 h, add 150 mL of deionized water, and keep the temperature below 15 °C. The...
Embodiment 2
[0026] Embodiment 2, the preparation method of antistatic graphene coating, comprises the following steps: The first step: get 10g of sodium thiosulfate, 3g of phosphorus pentoxide and 70ml of vitriol oil are added to 250ml round-bottomed flask, stir to complete solid dissolution , cooled to 60°C, added 2g of flake graphite, controlled the temperature at 60°C, stirred for 3h, added 100mL of deionized water, then transferred the mixture to a 500mL beaker, stood still, filtered with a microporous membrane, and used Washed with ionized water several times and air-dried at room temperature. The second step: add 50ml of concentrated sulfuric acid into a 500ml three-neck round-bottomed flask and cool to 15°C. The first step product was added to the cooled concentrated nitric acid and stirred. Slowly add 10 g of potassium perchlorate, and keep the temperature below 15 °C, and after stirring for 2 h, add 150 mL of deionized water, and keep the temperature below 15 °C. Then, add 30 m...
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